Passengers can currently bring onboard one 10kg bag (55cm x 40cm x 20cm) and one smaller bag, such as a handbag, laptop bag or airport shopping bag. 

Kenny Jacobs, Ryanair’s chief marketing officer said the airline had noticed customers bringing “larger than permitted bags onboard” and warned the carrier may review its second bag policy if customers ignored it.

Due to overhead locker space limitations, only 90 cabin bags can be stored in the aircraft’s cabin space. Any remaining normal cabin bags will be checked into the aircraft hold, free of charge.

Oversized luggage will either be refused or placed in the aircraft hold at a cost of €50 per bag. 

Jacobs said: “As we enter the peak summer period with many full flights, we urge customers to ensure that they travel with less carry-on bags where possible. Our aircraft can only carry 90 larger carry-on bags and our gate agents will rigorously enforce our carry-on policy to avoid flight delays.”

He added: “Customers are permitted to bring a normal cabin bag and a smaller bag onboard and the allowance of a second bag has been one of our most popular “Always Getting Better” improvements.”